With a focus on Latin America, Mr. Tanner advises numerous clients on above-ground risk and exploration and production business environment scenarios. He is responsible for maintaining country and subnational hydrocarbon sector risk forecasts for long-term upstream investments across producing and frontier countries. He has designed, managed, and presented a range of bespoke consulting projects assessing political and economic risk, national oil company strategies, regulation, and asset opportunities. Mr. Tanner's commentary has been featured in Bloomberg, Financial Times, The Wall Street Journal, Platts, and other media.